Starting arrangement for internal-combustion engines in which an electric starting-motor is used.



STARTING ARRANGEMENT FOR INTERNAL COMEUSHON ENGINES [N W ICH AN ELECTRIC STARTING MOWER IS USED,

- APPLZCATZUN HLEF; lULJ'Zi. 29w

'Patemed Feb. 26, 1M8.

2 SHEETS-SHEET1.

INVENTOR Patented F61). 26, 1918.

2 SHEET$SHEET 2.

INVEN'XGR fi 4 agar/{ A. DUTREUX. STARTING ARRANGEMENT FOR WTERNAL COMBUSTION ENGINES IN WHICH AN ELECTRIC STARTING MOTOR IS USED.

APPHCATION mm xuwzi, 19w.

UNITED srarns AUGUSTE DUTEIEUX, O1" ISSY-LE5-MOULII ANONYME IQ'UR LEGLAIRAGE Elllilllrtl NEAUX, FELXELNCE A UOBYGRATION O33 FHA Specification. of Letters .cetent.

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Application filed July 21, 1915. tLcriel No. 11,155.

To all whom it may concern:

Be it known that I, AUGUs'rn Duration, citizen of the French Republic, residing at Issy -lcs lvloulineaux, Department of the Seine, in France, have invented certain new and useful Improvements in Starting Ar rangements for Internal Combustion Engines in which an Electric Starting-Motor is Used; and I do hereby declare the following to be a full, clear and exact description of the invention, such as will enable others as well as the cutting out of the electromagnet, the starting of the explosion motor following automatically the breakage of the coupling and the opening of the electric circuit. The improved arrangement has the advantage of always insuring the meshing; of the pinions forming the coupling because the electric motor turns first-of all with a slow speed and of preventing the motor from giving its full power before the coupling is completely etlected. l nrther, the starting of the explosion motor brings about automatically with the disengagement of the coupling, the opening of the circuit of the electric motor.

In the accompanying drawing one manner in which the improved arrangement of this invention can be carried into efi ect is shown by way of example.

Figure 1 is a cross section on a plane perpendicular to the axis of the electric motor of the starting arrangement.

Fig. 1 is a side elevation of a portion of the device looking at right angles to Fig. 1. Fig. 2 is a cross section on the axis of the tric motor.

. forced Figs. 4, ti and show in plan and in section a three-way switch.

.hig. 4 is a fragmental elevation of a fragment of the device.

In the form of the arrangement. shown in the drawing the coupling between the electric motor and the explosion motor brought about by means of a pinion 1 always in mesh with a pinion 2 fixed on the shaft 3 of the electric motor l. The pinion is mounted loose on a shaft 5 supported by link (5 surrounding a casing '7 concentric c5 with the shaft ot the electric motor. in this way the shaft 5 can oscillate around he shaft 3, the pinion 1 remaining coiiistantiy in engagement with the. pinion 2 iixed on the shaft of the electric motor. ihe linl; 6 for the shaft 5 is rigid with a core 8 moving within a coil or solenoid 9, being secured thcreto.by screws 6.

The shaft 5 in oscillating around the shaft 3 causes the pinion l. to engage with the gear wheel 10 mounted on the flywheel of the explosion motor. Normally the pinion l. is held out of engagement with the gear wnecl 10 by a spring ll. The arnniture of the electromannet is provided with a. contact which cooperates with a tired contact 13 when by the displacement of the the pinion 1 engages the wheel it). (lurrent is led to the contacts l2. 13 by means of blocks and screws 15.

Fig. 3 shows the connections oi the elec tric circuits. A three-way switch 1'? eontrols the connection in circuit oi a oa of accumulators it; with the elec i 4. In its first closed position toe su completes the circuit of the elect 9 over a suitable resistance 18 and tric motor 4;. In its second closed position the switch 1'? opens circuit a tromag'net 9 and connects 6 the interposition of any r' .;ista tric motor (l with the battery tors 16.

The three-way switch it? tail in Figs. 4i and 5. he switch is operated by a he firmly connected to an into 2 2: h

SLOSS E25 and position toward the block owing to the spring 21 it slides below the cam 23 y the es corresponding amp, raise it and en agsuccessively the blocks- 25 and 2%. 1 reverse direction the plate leaves the block 2%, passes by the ramp over the cam which separates it from the block 24; and returns without touching the latter to its initial position.

The operation oi the arrangement thns described and illustrated is as follows.

The two motors being at rest the pinion 1, owing to the action of the spring Ill, withdrawn from the gear wheel 1' on the flywheel of the explosion mot rotating the switch 17 into its lirst o is .ive position the electromagnet 9 is put in circuit with the resistance 18 and the electric motor i, the pinion 1 being brought into contact with the gear wheel 10 by the attraction or" the core 8 of the solenoid 9. The motor i then commences to rotate. The pinion l meshes with the gear wheel 10, the contacts 12 and 13 are in engagement and the switch 1'4" is moved to its second opera-- tive position in which the current passes directly to the electric motor l by the corn tacts l2 and 13 the electromagnet 9 being cut out of circuit. The direction of the force exerted on the teeth of the pinion i by reason of the rotation of the latter in contact with the gear wheel 10 insures continuous engagement of the teeth of the pinion l with the gear wheel 10. l/"hen the electric motor 4 runs at full power the esplosion motor is started up by means of pinions 2 and As soon as the startinrr has been effected the gear wheel 10 turns at a greater speed th n that oi the pinion i, the direction of the reactions undergone by the teeth of the latter pinion, as a result, hecome reversed and their effect aided by the tension of the spring 11 brings about a breakage of the coupling. At the same n1oment that the breakage of the coupling takes place contacts 19 and 13 separate and open the circuit of the electric motor at. The switch'l'l returns to its oil or zero position without again passing through its first position in which the circuit of the electroniagnet 9 is completed.

By the arrai lent which has just o c escrihed the 1. ion 1 is brought into gagemcnt with the gear wheel 10 when too motor is running at a low speed. L is inipossible to operate the motor at full power when the pinions are not in engagement, and it is therefore impossible to obtain by a faulty manipulation anything but the nonoperatlon of the motor. The arrangement herein described provides an arrangement which is a very reliable one for electrically starting explosion. motors.

Claim:

In a starting device for explosion engines, a motor, means actuated by the motor to start the engine, electro-magnetic means for moving the aforementioned means to an operative position, an open circuit including the motor, the magnet and suitable resist ance in series and a source of energy, a switch for closing the circuit, a second circuit including the motor and a source only, the aforementioned switch being manually operable to break the former circuit and close the latter circuit at one point, the circuit being closed at a second point automatically upon the movement of the starting means to its operative position.

In testimony whereof I afiix my signature, in presence of two witnesses.

AUGUSTE DUTREUX.

Witnesses:

CHAS. P. Pnnssny, HENRI Comm. 

